Electrode seal for use in a metallurgical furnace
Assignee9282-3087 Quebec (dba TMC Canada)
InventorJohn CHAO
Life of this patent
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Abstract
An electrode seal for use in a metallurgical furnace, the furnace comprising a furnace space heated by electrodes extending through an aperture into the furnace space. The electrode seal comprises at least three sets of shoes in consecutive lateral contact, each shoe having a biasing member for biasing a surface of the shoe toward one of the electrodes thereby allowing the one electrode to longitudinally move within the electrode seal while providing electrical insulation between the electrode and the aperture.
Claims17
A metallurgical furnace for smelting minerals comprising:
- a refractory, surrounding a furnace space, for dissipating heat when the furnace space is heated, the refractory comprising an inner layer having a heat dissipation thickness, the inner layer comprising:
- a first plurality of bricks of a first type having the heat dissipation thickness;
- and a second plurality of bricks of a second type having a sacrificial thickness greater than the heat dissipation thickness, the second plurality of bricks protruding towards the furnace space.
A method of modifying an existing refractory in a metallurgical furnace for smelting minerals, wherein the existing refractory surrounds a furnace space and is for dissipating heat when the furnace space is heated, the method comprising:
- providing an inner refractory layer within the existing refractory, the inner refractory layer having a heat dissipation thickness, and the inner refractory layer comprising:
- a first plurality of bricks of a first type having the heat dissipation thickness;
- and a second plurality of bricks of a second type having a sacrificial thickness greater than the heat dissipation thickness, the second plurality of bricks protruding towards the furnace space.
A metallurgical furnace comprising:
- a refractory, surrounding a furnace space, for dissipating heat when the furnace space is heated;
- a force exerting member for contracting a segmented outer shell around the refractory, toward the furnace space, as the refractory contracts when the furnace space is cooling.
Dependencies are inferred from the claim text.